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Individual Calculations February 2023 |
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| Welege , Imantha Lakshan Total change: 54.40 | |   |
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| Ethugalpura Open International Rating Chess Championships 2022 | Kurunegala | SRI | 2022-12-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1293 | 1121 | 2.00 | 6 | 0.29 | 40 | 11.60 | |
|  Kodithuwakku, K K Dinujaya | | | 1405 | SRI | 0.00 | 1 | -0.16 | 40 | -6.40 | |  Basnayake, K B B M Dinuga Sanketh | | | 1250 | SRI | 0.50 | 1 | 0.17 | 40 | 6.80 | | | Rathnayake, R M M P B | | | 1129 | SRI | 0.50 | 1 | 0.01 | 40 | 0.40 | | | Nanayakkara, Sanuk | | | 1240 | SRI | 1.00 | 1 | 0.66 | 40 | 26.40 | | | Bentharaarachchi, Vinuga Ometh | | | 1361 | SRI | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Francis, U M Senal Vishmin | | | 1371 | SRI | 0.00 | 1 | -0.19 | 40 | -7.60 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | | Kandy Open International Rating Chess Championships 2022 | Kandy | SRI | 2022-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1347 | 1121 | 1.50 | 2 | 1.07 | 40 | 42.80 | |
| | Bentharaarachchi, Vinuga Ometh | | | 1361 | SRI | 0.50 | 1 | 0.30 | 40 | 12.00 | | | Ramyasiri, Kaveen Poorna | | | 1332 | SRI | 1.00 | 1 | 0.77 | 40 | 30.80 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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